CVE-2026-116131: vulnerability in HTTP-Body
HTTP::Body versions before 1.23_01 for Perl allow memory and temporary file exhaustion via an unlimited number of form fields and multipart parts
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.3%
HTTP::Body versions before 1.23_01 for Perl allow memory and temporary file exhaustion via an unlimited number of form fields and multipart parts.
The urlencoded parser splits the whole body on its separators at once, creating one scalar per separator before any field is stored. This costs about 90 bytes of memory per separator byte. The multipart parser creates a temporary file for every part that carries a filename. Neither parser limits how many fields or parts a body may hold.
A remote attacker can exhaust worker memory with a body made of separators, or create thousands of temporary files with one request of small file parts.
Affected products
HTTP-BodyRelated CVEs — HTTP-Body
In the same product, most dangerous first.
CVE-2026-116135—HTTP::Body versions before 1.23_01 for Perl drop mixed-case percent escapes from urlencoded form fields instead of decoding themEPSS 0.3%CVE-2026-116132—HTTP::Body versions before 1.23_01 for Perl leave the temporary file of an incomplete multipart upload on diskEPSS 0.3%CVE-2026-116134—HTTP::Body versions before 1.23_01 for Perl allow memory exhaustion via an unbounded multipart part header blockEPSS 0.3%CVE-2026-116133—HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic rescanning of a multipart body with a missing or malformed boundaryEPSS 0.3%CVE-2026-116531—HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunkEPSS 0.3%CVE-2026-116285—HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodiesEPSS 0.3%